The player at that point cannot even repurchase if they wanted to under that account (unless they switch over to Steam or an all-disc, no Origin install) because their accounts have the base game or the EPs blocked from authenticating and running. A common theme back then was that an agent on behalf of the re-seller would buy thousands of codes by credit card and then have a chargeback issued for a supposedly unauthorized purchase, thus getting their money back but still having the codes in hand (so to speak) to re-sell.
This is not game piracy exactly, at least not intentionally on behalf of the players, this is the players being duped into buying what were really stolen codes at bargain prices. What's happened to countless players (but not all of them) who have purchased from unauthorized re-sellers is that eventually, and sometimes it takes months or even years, EA's Loss Prevention dept catches up with the illegitimate game codes for which EA was never paid and blocks their usage. G2A is not an authorized re-seller of the game like Origin itself and a number of other (usually full-price) retailers are.
the new EA app, it's a much older issue than that. Yes, and if you sere able to install it then I expect Origin would still block the game or the packs in question from running.
